Back-coating
[计] 底面涂层
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
coating
['kəutiŋ]
n. 涂层，覆盖层;（食品上的）面衣，糖衣，涂料;外衣布料上衣料，细呢，花呢;
v. 给…穿上外衣;覆盖;“coat”的现在分词;
🗣️ 情景例句
How much time will it take for my mail to get to where it is going?
我的信件到达它要去的地方要用多少时间？
A pound of care will not pay an ounce of debt.
深忧偿不了小债。
Come up these steps with me, please, and be careful.
请跟我走上这些台阶，请小心点。